Bad service and cars sold

DRrove 700km to biy a Bakkie at them. Got thete and the bakkie is s****. They give us n other bakkie and wotjin 1 day the bakkie broke down. Bakkie was send to a machanice via them and now there is more and more faults and they want to cancel the contract becuase the bakkie is faulty and said we cant get a other car, thye are very bad dealers and refuse to take responsibilty for the faulty cars.